2019 Keystone (Cougar) for sale. Tongue pull, Road armor suspension, Enclosed underbelly, aluminum framework, vacuum bonded lamination, walkable roof, laminated flooring, tru fit side construction, and an in command system, which translates to a well built, nicely maintained RV with touchscreen or smart phone controlled system for lights, slides, and tank monitoring. it has a propane powered heating system, and stove top oven. It has a (50-amp) plug in. It has a microwave, and fridge. the "Master" bedroom has its own cooler system, and tv.